Safe Work Practices

Question 1

Name 4 categories of trade related hazards.

Answer 1

Biological, chemical, ergonomic, and physical.

Question 2

Name 3 sub categories of biological hazards

Answer 2

Bacterial, Fungal, and Viral

Question 3

Name 6 sub categories of chemical hazards

Answer 3

Gases, vapors, mists, fibers, fumes, dust

Question 4

Name 2 sub categories of ergonomic hazards

Answer 4

Physiological, and psychological

Question 5

Name 8 sub categories of physical hazards

Answer 5

Fire/explosion, noise, vibration, heat/cold, pressure, radiation, falls/falling objects, and sharp objects.

Question 6

What are the 2 types of radioactive hazards?

Answer 6

Ionizing and non-ionizing

Question 7

When lifting how far apart should your feet be?

Answer 7

Shoulder width

Question 8

When lifting Bend your _______

Answer 8

Knees

Question 9

When lifting keep the load ______ to your body

Answer 9

Close

Question 10

What is a confined space?

Answer 10

An enclosed or partially enclosed space having restricted access and egress(a way out).

Question 11

What are the safety procedures for working in confined spaces?

Answer 11

Prior to entering use a gas detector.

Monitor the air continually (can change quickly)

If necessary disconnect or isolate pipelines.

Conduct a meeting to prepare before the job.

Keep gas cylinders outside when not in use.

Ignite and extinguish torches outside.

Question 12

Name 4 types of respirators

Answer 12

Air purifying respirator

Airline respirator

Self-Contained Breathing Apparatus

Emergency escape breathing apparatus

Question 13

When can you not use a air purifying respirator

Answer 13

In an atmosphere that is immediately dangerous to life and health

Question 14

Name 2 types of airline respirators

Answer 14

Continuous flow

Pressure demand

Question 15

What type of respirator supplies the wearer with the highest level of respiratory protection?

Answer 15

Self-Contained breathing apparatus

Question 16

An Emergency escape breathe by apparatus is designed to give you how many minutes of air?

Answer 16

5 to 10 minutes

Question 17

You suspect a fellow worker is overcome by hydrogen sulphide gas or some other lethal substance. What is the first thing you do?

Answer 17

Put on your own breathing apparatus

Question 18

Hydrogen sulphide has what sent?

Answer 18

Rotten eggs

Question 19

Who is responsible to ensure all required PPE is used?

Answer 19

You and your employer

Question 20

What are warning signs you should be using hearing protection?

Answer 20

Have to raise your voice to speak to someone 3 feet away

You develop a ringing or buzzing in your ears

When you get in your vehicle in the morning you have to turn down the radio volume because it is too loud

Question 21

When should a full face visor be worn?

Answer 21

Grinding or chipping

Question 22

Name the 3 elements of fire

Answer 22

Fuel

Oxygen

Heat ignition

Question 23

Name 2 types of fuel (element of fire)

Answer 23

Stable fuel

Unstable fuel

Question 24

What is the difference between stable and unstable fuel

Answer 24

Stable fuel do not react when exposed to air, water, heat, shock or pressure under normal conditions

Unstable fuels chemically react or become self-reactive under these conditions

Question 25

What is a piloted ignition?

Answer 25

Ignition achieved by adding an ignition source such as a flame

Question 26

What is auto-ignition?

Answer 26

Occurs when temperature is raised to sufficiently dry finite a gas-air or vapor-air mixture

Question 27

Name 5 classifications of fire

Answer 27

Class A - Ordinary combustible 
Class B - Flammable liquids or gases
Class C - Electrical 
Class D - Combustible metals
Class K - Combustible Oil or Grease

Question 28

How do you extinguish a combustible oil or grease (type K)?

Answer 28

Wet chemical

Question 29

How do you extinguish a combustible Metal (type d)?

Answer 29

Dry powder

Question 30

How do you extinguish a fire where electricity is present? (Type c)

Answer 30

Carbon dioxide
Regular dry chemical
Purple K dry chemical
Multi purpose dry chemical

Question 31

How do you extinguish a flammable liquid or gas? (Type b)

Answer 31

Foam
Carbon dioxide
Regular dry chemical 
Purple me K dry chemical
Multi purpose dry chemical

Question 32

How do you extinguish ordinary combustibles ? (Type a)

Answer 32

Water
Foam
Multi purpose dry chemical

Question 33

The side rails of every ladder shall extend what minimum distance above any platform or landing?

Answer 33

1 meter

Question 34

When setting an extension ladder how far out should the ladder be set?

Answer 34

1/4 of the height.

4 m high equals 1 m out

Question 35

What is a the minimum height of a guardrail on a scaffold?

Answer 35

900 mm above floor level

Question 36

What is a toe-board?

Answer 36

Protective barrier placed near or on the ground or walking surface. Prevents tools from falling off scaffolding.

Question 37

What is the platform height that requires a toe board and a guard rail to protect those working below?

Answer 37

3 meters

Question 38

What is the minimum distance from the edge of the trench that the material removed from an excavation (spoil pile) must be kept?

Answer 38

1.2 meters

Question 39

When is it t necessary to install guardrails on a platform?

Answer 39

Above 3 meters or there are those working below.

Question 40

When is it possible for workmen to remain on scaffolds while they are being moved?

Answer 40

Never

Question 41

Planks on a scaffold shall extend a minimum of _____ mm and not more than _____ mm beyond all edges.

Answer 41

150 mm min

300 mm max